koere-skolen.dk

📜 Historical scan 2026-09-28 03:36:24  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

koere-skolen.dk is a .dk domain served by 2 nameservers (carlane.ns.cloudflare.com, josh.ns.cloudflare.com). It was registered on 29 January 2006 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.95.200 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mx.simply.com. The zone is not DNSSEC-signed, has no DMARC policy and is reachable over IPv6. Below are all of its DNS records from this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records   39ms
NameserverIP addressesPTRASN / ISP
carlane.ns.cloudflare.com 108.162.194.25
162.159.38.25
172.64.34.25
2606:4700:50::a29f:2619
2803:f800:50::6ca2:c219
2a06:98c1:50::ac40:2219		 carlane.ns.cloudflare.com
carlane.ns.cloudflare.com
carlane.ns.cloudflare.com
carlane.ns.cloudflare.com
carlane.ns.cloudflare.com
carlane.ns.cloudflare.com		 AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
josh.ns.cloudflare.com 108.162.193.126
172.64.33.126
173.245.59.126
2606:4700:58::adf5:3b7e
2803:f800:50::6ca2:c17e
2a06:98c1:50::ac40:217e		 josh.ns.cloudflare.com
josh.ns.cloudflare.com
josh.ns.cloudflare.com
josh.ns.cloudflare.com
josh.ns.cloudflare.com
josh.ns.cloudflare.com		 AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.

🌍 A Records#

2 records   37ms
IPTTLPTRASNISP / OrgCIDRCountryCity
104.21.95.200 300s — AS13335 Cloudflare, Inc. 104.21.0.0/17 — —
172.67.147.179 300s — AS13335 Cloudflare, Inc. 172.67.128.0/17 — —

📧 MX Records#

1 records   30ms
PriorityTTLMail ServerIP addressesPTRASN
10 300s mx.simply.com 94.231.106.20 mx.simply.com AS48854 team.blue Denmark A/S

📧 Autodiscover / Autoconfig#

ServiceCNAME / IP
🔷 Autodiscover104.21.95.200
🔶 Autoconfig104.21.95.200

🔷 AAAA Records (IPv6)#

2 records   49ms
IPv6 AddressTTLPTRASNISP / OrgCIDRCountryCity
2606:4700:3032::6815:5fc8 300s — AS13335 Cloudflare, Inc. 2606:4700:3000:0:0:0:0:0/42 — —
2606:4700:3037::ac43:93b3 300s — AS13335 Cloudflare, Inc. 2606:4700:3000:0:0:0:0:0/42 — —

🔐 HTTPS Records#

1 records   26ms
PriorityTargetSvcParams
1 service . alpn="h3,h2" ipv4hint=104.21.95.200,172.67.147.179 ech=AEX+DQBBpgAgACCrEXo/7Ss2pSz8cXDbueygqotFc7CDW5NkJJafvVh8SQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::6815:5fc8,2606:4700:3037::ac43:93b3

🔌 SRV Records#

1 records   58ms
ServicePriorityWeightPortTarget
_autodiscover._tcp 10 10 443 maildiscover.simply.com

📝 TXT Records#

1 records   159ms
TXT Record
v=spf1 include:spf.simply.com -all

✉️ SPF#

PolicyRecord (koere-skolen.dk)
-all (hard fail) v=spf1 include:spf.simply.com -all

📨 DMARC#

✗ No DMARC record — mail spoofing not restricted

📬 MTA-STS#

✗ No MTA-STS policy — SMTP TLS not enforced

📈 TLSRPT#

✗ No TLSRPT record — no SMTP TLS failure reporting

📜 CAA Records#

✗ No CAA records — any CA may issue certificates

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-24 10:23:24
www104.21.95.200 172.67.147.179 2606:4700:3032::6815:5fc8 2606:4700:3037::ac43:93b3 (AS13335) (address records, no CNAME)
www vs bare domainSame network
WildcardYes: any name under the zone resolves

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: -all

No problems found

🔏 ACME Challenge#

TypeNameValue
TXT _acme-challenge.koere-skolen.dk 2Zy0bDeLot6iwRyPEkUnIIYK4jiftqJ7Yw-IfIhufNI
TXT _acme-challenge.koere-skolen.dk _lV6PA3Jb913baVXWiX493H3Mwm18FkdWoA8N8Yi0UU

🔗 TLSA / DANE#

2 records   53ms
Service / OwnerTypeCert association
SMTP _25._tcp.mx.simply.com DANE-EE · SPKI · SHA-256 97A3BA009F39C761BFFB6574340E8138…
SMTP _25._tcp.mx.simply.com DANE-EE · SPKI · SHA-256 A9D603AF4D7ED6B9246B4B68500CD6F2…

🔐 DNSSEC#

116ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer

🏷️ SOA#

0ms
FieldValue
Serial2416025800
Primary NS (MNAME)carlane.ns.cloudflare.com
Responsible (RNAME)dns@cloudflare.com
Refresh10000s
Retry2400s
Expire604800s
Minimum (neg-cache TTL)1800s

📋 Registration#

WHOIS fetched 2026-09-30 15:10:15
FieldValue
RegistrarSimply.com A/S
Registered2006-01-29
Expires2027-01-31 (96d)
📋 WHOIS#

⏱️ Lookup Timing#

NS
39ms
A
37ms
MX
30ms
AAAA
49ms
TXT
159ms
CAA
34ms
HTTPS
26ms
TLSA
53ms
SOA
0ms
MTA-STS
67ms
DNSSEC
116ms
SRV
58ms
Total
672ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-03 22:24:48 519ms 2 NS 2 A 1 MX 🔓 Insecure
2026-09-30 15:02:15 600ms 2 NS 2 A 1 MX 🔓 Insecure
2026-09-29 04:00:39 1181ms 2 NS 2 A 1 MX 🔓 Insecure
2026-09-28 03:36:24 shown 672ms 2 NS 2 A 1 MX 🔓 Insecure
2026-09-25 02:42:28 509ms 3 NS 1 A 1 MX 🔓 Insecure
2026-09-12 02:01:19 913ms 3 NS 1 A 1 MX 🔓 Insecure
2026-08-23 09:40:22 10180ms 2 NS 0 A 0 MX ❓ Unknown
2026-08-22 08:52:19 3561ms 2 NS 0 A 0 MX ❓ Unknown
2026-08-21 08:39:39 5542ms 2 NS 0 A 0 MX ❓ Unknown
2026-08-20 08:23:51 1398ms 2 NS 0 A 0 MX ❓ Unknown
2026-08-19 07:16:23 2656ms 2 NS 0 A 0 MX ❓ Unknown
2026-08-18 05:48:15 10098ms 2 NS 0 A 0 MX ❓ Unknown
2026-08-16 18:02:36 10304ms 2 NS 0 A 0 MX ❓ Unknown
2026-08-14 23:40:31 4410ms 2 NS 0 A 0 MX ❓ Unknown
2026-08-13 13:35:35 27151ms 2 NS 0 A 0 MX ❓ Unknown
2026-08-12 05:03:19 10319ms 2 NS 0 A 0 MX ❓ Unknown
2026-08-11 02:39:56 2637ms 2 NS 0 A 0 MX ❓ Unknown
2026-08-08 22:47:05 10136ms 2 NS 0 A 0 MX ❓ Unknown
2026-08-06 16:50:34 978ms 2 NS 0 A 0 MX ❓ Unknown
2026-07-30 21:59:29 8766ms 2 NS 0 A 0 MX ❓ Unknown
2026-07-27 10:59:48 10118ms 2 NS 0 A 0 MX ❓ Unknown
2026-07-26 10:51:10 952ms 2 NS 0 A 0 MX ❓ Unknown
2026-07-25 10:21:22 1521ms 2 NS 0 A 0 MX ❓ Unknown
2026-07-24 10:09:35 1332ms 2 NS 0 A 0 MX ❓ Unknown
2026-07-23 08:52:52 16676ms 2 NS 0 A 0 MX ❓ Unknown
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